As electricity costs keep climbing in California, many people are drawn to the idea of using solar panels and battery storage to rely less on the utility, or to bypass it altogether. That is the issue facing an Oakland apartment resident on the r/SolarDIY subreddit who is trying to determine whether a relatively small system could eliminate a PG&E bill. Here's what to know In a post on Reddit, the resident asked for guidance on a battery-and-sol…